Supports JPG / WebP conversion • Client-side local processing
Click or drag any images to this drop zone
Supports JPG, PNG, WebP, SVG, GIF, BMP, ICO formats
Learn how compression algorithms function to select the ideal optimization workflow.
The legacy JPG format inherently lacks transparent alpha channel support. Converting transparent graphics directly to standard JPG format renders empty areas as black blocks. To ensure clean visual output, this tool automatically applies a solid white background during JPG conversion. To preserve transparent backgrounds, export to WebP format instead.
Quality reduction uses lossy compression principles. Human vision is sensitive to broad lighting changes but mostly insensitive to high-frequency color detail noise. Reducing quality parameters allows algorithms to quantize and discard invisible detail frequencies. Setting quality between 75% and 80% typically cuts file sizes by over 50% with zero noticeable loss in quality.
Because image complexity varies, mathematical formulas cannot directly predict quality-to-KB ratios. Selecting target file sizes runs a fast Binary Search algorithm inside your browser, testing compression iterations in milliseconds to find the maximum quality parameter matching your file size cap.
WebP combines the strengths of JPG and PNG. It delivers superior compression efficiency (25%–35% smaller file sizes than JPG) alongside full alpha channel transparency support. Unless targeting legacy software lacking WebP compatibility, we recommend adopting WebP.
